In no way does not being able to conceal your face infringe on your right to free speech. You can still speak freely.
What you can’t do is commit crimes - often violent crimes - with impunity. That’s exactly why the Klan wore masks and exactly why many Southern states have mask bans.
That’s exactly why Klantifa wears masks and exactly why I call them Klan-tifa.
At more than one anti-Israel rally near a tent city occupation of a college campus the reporter asked “If you are speaking out like this shouldn’t you be able to remove your mask?” They make excuses and say they show their faces elsewhere. All BS.